package com.atguigu.statistics.service.impl;

import com.atguigu.commonutils.R;
import com.atguigu.statistics.client.UcenterClient;
import com.atguigu.statistics.entity.Daily;
import com.atguigu.statistics.mapper.DailyMapper;
import com.atguigu.statistics.service.DailyService;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.apache.commons.lang3.RandomUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.*;

/**
 * <p>
 * 网站统计日数据 服务实现类
 * </p>
 *
 * @author testjava
 * @since 2022-10-26
 */



@Service
public class DailyServiceImpl extends ServiceImpl<DailyMapper, Daily> implements DailyService {

    @Autowired
    private UcenterClient ucenterClient;

    @Override
    public void registerCount(String day) {
        //添加记录之前先删除表相同日期的数据
        QueryWrapper<Daily> wrapper = new QueryWrapper<>();
        wrapper.eq("date_calculated",day);
        baseMapper.delete(wrapper);

        //远程调用得到某一天的注册人数
        R r = ucenterClient.countRegister(day);
        Integer countRegister = (Integer) r.getData().get("countRegister");

        //把获取数据添加进数据库统计分析表里面去
        Daily daily=new Daily();
        daily.setRegisterNum(countRegister);  //注册人数
        daily.setDateCalculated(day);         //统计日期

        RandomUtils.nextInt(100,200);
        daily.setVideoViewNum(RandomUtils.nextInt(100,200));   //每日播放视频数
        daily.setLoginNum(RandomUtils.nextInt(100,200));        //每日登录人数
        daily.setCourseNum(RandomUtils.nextInt(100,200));       //每日新增课程数
        baseMapper.insert(daily);
    }


    //图表显示，返回两部分数据，日期json数组，数量json数组
    @Override
    public Map<String, Object> getShowData(String type, String begin, String end) {
        //根据条件查询对应数据
        QueryWrapper<Daily> wrapper = new QueryWrapper<>();

        wrapper.between("date_calculated",begin,end);

        //根据字段查询
        wrapper.select("date_calculated",type);

        List<Daily> staList = baseMapper.selectList(wrapper);
        //因为返回有两部分数据：日期 和 日期对应数量
        //前端要求数组json结构,对应后端java代码是list集合
        //创建两个list集合，一个日期list,一个数量list
        List<String> date_calculatedList = new ArrayList<>();
        List<Integer> numDataList = new ArrayList<>();

        //遍历查询出来所有数据list集合，进行封装
        for (int i = 0; i < staList.size(); i++) {
            Daily daily = staList.get(i);
            //封装日期list集合
            date_calculatedList.add(daily.getDateCalculated());
            //需要对其判断选择的是哪个类型type
            //封装对应数量
            switch (type){
                case "login_num":
                    numDataList.add(daily.getLoginNum());
                    break;
                case "register_num":
                    numDataList.add(daily.getRegisterNum());
                    break;
                case "video_view_num":
                    numDataList.add(daily.getVideoViewNum());
                    break;
                case "course_num":
                    numDataList.add(daily.getCourseNum());
                    break;
                default:
                    break;
            }
        }

        Map<String,Object> map = new HashMap<>();
        map.put("date_calculatedList",date_calculatedList);
        map.put("numDataList",numDataList);

        return map;
    }
}
